Adjustable Rail Fastening Assembly

Abstract

Assembly ( 10 ) for fastening a railway rail ( 1 ), comprises a lower platen ( 11 ) provided with through holes ( 111 ) for anchoring the lower platen to ground ( 40 ) by means of ground anchoring means ( 15 ), an upper platen ( 12 ) for supporting the rail ( 1 ) superposed on the lower platen, and a pair of rail fastening clips ( 142 ) for fastening the rail to the upper platen ( 12 ). The lower platen comprises downwards projecting portions at a bottom face of the lower platen, wherein the lower platen has an increased thickness at the downwards projecting portions, and wherein the downwards projecting portions are arranged at opposite sides of the lower platen.

1 . Assembly ( 10 ) for fastening a railway rail ( 1 ), comprising:
 a lower platen ( 11 ,  21 ) provided with through holes ( 111 ) for anchoring the lower platen to ground ( 40 ) by anchoring bolts ( 15 ),   an upper platen ( 12 ,  22 ) having an upper face ( 125 ) for supporting the rail ( 1 ), the upper platen being adapted for superposition on the lower platen,   a pair of rail fastening clips ( 142 ) configured for being arranged at opposite sides of the rail ( 1 ) and configured for fastening the rail to the upper platen ( 12 ),   
       wherein the lower platen comprises downward projecting portions at a bottom face of the lower platen. 
     
     
         2 . Assembly of  claim 1 , wherein the lower platen has an increased thickness at the downward projecting portions, and wherein the downward projecting portions are arranged at opposite sides of the lower platen. 
     
     
         3 . Assembly of  claim 1 , wherein the downward projecting portions are separated from one another. 
     
     
         4 . Assembly of  claim 1 , wherein the downward projecting portions are arranged at diagonal ends of the lower platen. 
     
     
         5 . Assembly of  claim 1 , wherein the downward projecting portions define a recessed region arranged centrally between the downward projecting portions at the bottom face, wherein the recessed region separates the downward projecting portions from one another. 
     
     
         6 . Assembly of  claim 5 , wherein the recessed region is accessible from sides of the lower platen. 
     
     
         7 . Assembly of  claim 5 , wherein the recessed region is delimited by sidewalls of the downward projecting portions. 
     
     
         8 . Assembly of  claim 5 , wherein the recessed region is accessible from opposite sides of the lower platen. 
     
     
         9 . Assembly of  claim 1 , wherein the downward projecting portions extend along sides of the lower platen. 
     
     
         10 . Assembly of  claim 1 , wherein the downward projecting portions are two, arranged at diagonal ends of the lower platen. 
     
     
         11 . Assembly of  claim 1 , wherein the downward projecting portions are embedded in one of a group consisting of grout and epoxy. 
     
     
         12 . Assembly of  claim 1 , comprising platen assembling bolts for securing the upper platen to the lower platen, wherein the lower platen comprises holes for securing the platen assembling bolts, wherein the holes for securing the platen assembling bolts are arranged within a perimeter of the downward projecting portions. 
     
     
         13 . Assembly of  claim 12 , wherein the holes for securing the platen assembling bolts are through holes. 
     
     
         14 . Assembly of  claim 13 , comprising a cap closing a bottom opening of the holes for securing the platen assembling bolts. 
     
     
         15 . Assembly of  claim 1 , wherein the through holes are arranged within a perimeter of the downward projecting portions. 
     
     
         16 . A rail support system, comprising:
 a lower platen ( 11 ,  21 ) provided with through holes ( 111 ) for anchoring the lower platen to ground ( 40 ) by anchoring bolts ( 15 ), wherein the lower platen comprises downward projecting portions at a bottom face of the lower platen;   an upper platen ( 12 ,  22 ) having an upper face ( 125 ) for supporting the rail ( 1 ), the upper platen being adapted for superposition on the lower platen;   a pair of rail fastening clips ( 142 ) configured for being arranged at opposite sides of the rail ( 1 ) and configured for fastening the rail to the upper platen ( 12 );   a concrete base ( 40 ) defining holes ( 41 ), the anchoring bolts ( 15 ) received in the holes;   a grout ( 43 ) or other hardening filter material filling the holes ( 41 ) and a space defined between the concrete base ( 40 ) and the lower platen, the downward projecting portions being embedded in the grout ( 43 ) or other hardening filter material.   
     
     
         17 . The rail support system of  claim 16 , wherein the lower platen is elevated above and not in contact with the concrete base ( 40 ) with members ( 42 ) surrounding the anchoring bolts ( 15 ) setting a vertical elevation of the lower platen above the concrete base. 
     
     
         18 . The rail support system of  claim 16 , wherein the lower platen has an increased thickness at the downward projecting portions, and wherein the downward projecting portions are arranged at opposite sides of the lower platen. 
     
     
         19 . The rail support system of  claim 18 , wherein the downward projecting portions define a recessed region arranged centrally between the downward projecting portions at the bottom face, the recessed region having the grout ( 43 ) or other hardening filter material disposed therein with vertically extending surface to surface contact between a vertically extending surface of the downward projecting portions and the grout ( 43 ) or other hardening filter material to provide for horizontal load transfers direction between the downward projecting portions and the grout, and thereby reduce force transfer to the anchor bolts. 
     
     
         20 . The rail support system of  claim 19 , wherein the recessed region separates the downward projecting portions from one another. 
     
     
         21 . The rail support system of  claim 19 , wherein the lower platen defines a feed opening laterally through between the downward projecting portions adapted for receipt of grout. 
     
     
         22 . The rail support system of  claim 21 , wherein the lower platen defines an air escape exit displaced from the feed opening and adapted to prevent air entrapment in the recessed region. 
     
     
         23 . The rail support system of  claim 16 , wherein the downward projecting portions are arranged at diagonal ends of the lower platen. 
     
     
         24 . The rail support system of  claim 16 , wherein the downward projecting portions are separated from one another.